The "balloon" around the rotors is for storage only. You can open the upper part and put up to X batteries in it.All comments are welcome.

Hello everyone. I need your opinion about my drone concept. http://i.imgur.com/GdefjJB.jpg http://i.imgur.com/dNkGG8B.jpg http://i.imgur.com/0oPbZqM.jpg This is a hybrid of airship, quadrocopter and airplane: the cylinders ("body" and "wings") are…